Donald R. Yance

Donald R. Yance Jr., CN, MH, RH(AHG), is a clinical master herbalist and certified nutritionist. He is the founder of the Mederi Centre for Natural Healing in Ashland, Oregon, the president and formulator of Natura Health Products, and founder and president of the Mederi Foundation. He lives in Ashland, Oregon.

Books by this Author

Adaptogens in Medical Herbalism

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